Serial Number American Lock Combination Chart

Because american lock only sells combo locks in bulk mostly to schools and companies each order of locks comes with a combination chart.

Serial number american lock combination chart. The illustration shown to the right illustrates the slop in the mechanics of the lock. Once you ve completed the form mail it to the master lock warehouse along with a photo of the lock and the lock s serial number. Modulus is a lesser known mathematical operator that just means remainder the magic number with master locks is four. This lock requires 3 digit dialing to open.

Then fill out the form and pay to have it notarized. Later too and you may need to try up to 100 combinations later and it will be pretty frustrating when none of them work. To crack a master lock combination lock download a lost combination form on the master lock website. You need to find the modulus of the last digit of your lock and four.

In the early 1900 s john junkunc of junkunc bros. Make a list of possible last numbers of the combination. To provide enhanced security long term master lock discontinued imprinting a serial number on the lock body of combination locks sold through retail locations. Typically american lock combination locks are registered to a specific school or business but if you re unable to locate your lock information you can send a letter to american lock requesting a new combination chart.

Losing the combination for an american lock combination lock can be quite frustrating but steps can be taken online to retrieve the combo. The combination for a master lock combination padlock may be identified by looking up the serial number located on the back of the padlock in this code book. These locks are stamped with a serial and control charts are provided. Turn the dial clockwise past zero three times and leave it set to zero.

For my lock the last. All you need is a dull knife and a couple flathead screwdrivers a small one and another really small one. Try to find this chart before attempting to retrieve the combo online. Serial numbers may start or end with a letter in order to designate the series.

This makes master lock combination recovery a lot easier. A combination of 22 10 17 is the same as 22 11 17 or 22 9 17. Nor do you need to use an aluminum can shim. American lock invented the first combination lock because of frequently misplaced keys.

The american a400 fits lockers with a padlock eye of at least 5 16 8mm diameter. For american lock products call 1 800 778 2217 match my key aluminum steel brass stainless steel government hidden shackle combination.